It was meant to be a father-and-son fishing trip in the Canadian wilderness for Harry Cane and his 10-year-old son Tommy but they end up being hunted by ruthless killers and fighting for survival against a giant grizzly bear; falling in a canoe down a 50-foot waterfall; fighting a pack of starving grey wolves; being part of an aerial battle with Cessna aircraft; a shootout in the frozen tundra; and a fight to the death with the last killer. And in between all this they have to look after the little blonde girl they rescued from the killers who had just gunned down her parents. A sprawling adventure in the Canadian wilderness of the Northwest Territories along the mighty Mackenzie River, in a land where the temperature falls to minus 60 degrees in the middle of winter.A hostile environment where if the wild animals don't get you the freezing temperatures and icy winds will.